{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["manufacturing standard", "application", "enabling technology", "machine or equipment", "material", "concept or principle"], "input": "In addition to their low cost and weight , polymer heat exchangers offer good anticorrosion and antifouling properties ."}
{"manufacturing standard": [], "application": [], "enabling technology": [], "machine or equipment": ["heat exchangers"], "material": ["polymer"], "concept or principle": ["properties"]}